The new psychometrics: Comment on Appelbaum et al. (2018)

This comment attempts to correct misconceptions about psychometric measurement in the American Psychologist article "Journal Article Reporting Standards for Quantitative Research in Psychology" (Appelbaum et al., 2018) by offering an outline of what the author calls the new psychometrics. The new psychometrics argues for replacing "construct validation" with construct-to-measure validation, abandoning "convergent validation" in favor of content validation requiring correspondence of the content of the measure with the content of the construct definition, and restricting the term reliability to mean only the precision of scores from the measure.